Case for books



(No Model.)

I. C. KIGGINS. (IASB POR'BUOKS.

No. 439,782. Patented Nov. 4, 1890.

UNITED STATES PATENT OFFICE.

ISAAC C. KIGGINS, OF ELIZABETH, NEW JERSEY.

OASE FOR BOOKS.

SPECIFICATION form-ing part of Letters Patent No. 439,782, datedIilovembei` 4, 1890.

Application tiled May 26, 1890. Serial No. 353,124. (No modeL? To allwhom it may concern,.-

Be it known that I, IsAAO C. KiGGINs, a citizen of the United States,residing at Elizabeth, in the county of Union and State of New Jersey,have invented a new and useful Improvement in Cases for Books; and thefollowing is declared to be a full, clear, and exact description of thesame.

My invention relates to cases for springback books-such as ledgers andother account-books and blank-bOoks-and particularly to the hubs uponthe backs of such books. These cases have heretofore been made up byhand, there being at the back of the book a curved strip of bindersboard upon which cut-out pieces of leather or binders board are glued tomake the single or double thickness hubs the leather covering the backbeing While wet drawn or stretched over the said hubs, and back ofbinders board and shaped to conform to the inequalities of the parts,and this hand-work is expensive.

My invention is a new article of manufacture; and it consists in a casefor spring-back books wherein the hubs on the back are stamped up bypressure in a strip of binders board and the leather of the back, andthese hubs may be single or double and of any desired width, length, anddepth according to the size of the book, and these hollow hubs may bestamped up by a single operation or a succession of operations.

Cases of my improved form are made in standard sizes, and are an articleof merchandise adapted to a case to receive the sewed signatures formingthe leaves of the book.

In the drawings, Figure l is a plan view of theinner face of the case aslaid open, and Fig. 2 is a cross-section of the case through one of thehubs.

The case is made with the two sides a a of binders board, which form thecovers of the book. The leather b or other similar material forming thenished face of the case eX- tends over the surface of said sides a o.and across between them Where the back is to be formed, and the edges ofthe leather around three edges of the said sides a a are turned over andsecured upon the inner face of said sides. A strip of binders board c issecured to the leather equidistant from the opposite edges of the sidesa a', and while this strip c and the leather b are wet and pliable thesame are stamped up in heated dies to impart the curved form of the backand simultaneously to press outward in the moist strip and leather theswelled portions or hubs upon the back. These hubs, according to thesize of the case, may be single or double and of any desired length,widt-h, or depth, and the parts being stamped in heated dies dries outthe moisture and sets the parts so that the proper shape is insured andmaintained.

In Fig. 2 the sides aa are shown by dotted lines in their closedposition.

My improved case is readily and quickly made in a thorough and accuratemanner, and the expensive hand-labor heretofore employed in making booksin the usual manner is rendered unnecessary.

I claim as my invention- Asa new article of manufacture, the curvedback-case for spring-back books formed of covered binders board ofnearly uniform thickness throughout and having hollow baokwardly-projectin g ribs or hubs, substantially as specified.

Signed by me this 16th day of May, A. D. 1890.

ISAAC C. KIGGINS.

Witnesses:

D. S. FRANCIS, GEORGE W. GAMAE.

